The feature, which is rolling out to TweetDeck for the web, TweetDeck for Chrome and TweetDeck for Windows on Tuesday, creates two classes of users: administrators and contributors.

Admins can sign into TweetDeck with their personal accounts and send tweets, schedule tweets and add or remove team members. They cannot, however, access an account from outside TweetDeck or change credentials or passwords.

Contributors can tweet from the account, build lists, follow and unfollow accounts, and send and schedule tweets; they cannot view, add or remove team members, access the account outside of TweetDeck, or change credentials.

Weirdly, this means that technically, there is a third user level: the user who actually knows the main password. This user (or, users, we guess) can still log in through apps outside of TweetDeck and change credentials and passwords, just as you can now. The idea behind TweetDeck Teams is to limit the number of people with this kind of access.

In this way, TweetDeck is finally jumping into territory frequently used by Twitter third parties such as HootSuite and SocialFlow.

Twitter is also using TweetDeck Teams as a way to encourage users to use Twitter's two-factor verification. In the past, we've criticized Twitter's login verification, largely because it wasn't designed to help with situations where multiple users have access to an account.

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